His sickness ______with terrible weather has completely ruined this long expected trip.A.

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His sickness,______with terrible weather, has completely ruined this long expected trip.

A.combining

B.combined

C.to combine

D.to be combined

请帮忙给出正确答案和分析,谢谢!

热搜:关于氨基酸代谢错误的论述是_________。